Supporting means for electric motors.



H. M. SGHEIBE. SUPPORTING MEANS FORELEOTRIG MOTORS.

APPLICATION IILEI) JAN. 10, 1908.

' Patented Oct. 29, 1912.

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E K m INVENTO R ATTORNEY.-

H. M. SGHEIBE. SUPPORTING MEANS FOR ELECTRIC MOTORS.

APPLICATION FILED JAN. 10, 1908.

' Patented Oct. 29, 19 12.

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KTTORNEY HAROLD M. SCHEIBE, OF'WILKINSBURG, PENNSYLVANIA, ASSIGNOR, BY AS .SIGNMENTS, TO WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY, CiF EfifiT IPITTSBURGH, PENNSYLVANIA, A CORPORA IION OF PENNSYLVANIA.

SUPPORTING MEANS FOR ELECTRIC MOTORS.

v Application filed January 10,

Specification of Letters Patent.

Patented Oct. 29, 191s. 1908. Serial No. 410,249.

To all whom it may concern Be it known that I, Hnnono M. Sorrows, a citizen of the United States, and a resident of VVillrinsburg, in the county of Alla gheny and State of Pennsylvania, have in vented a new and useful Improvement in Supporting Means for Electric Motors, of which the following is a specification.

My invention relates to means for open atively securing two members together, and it has for its object to provide simple and inexpensive supporting means for an electric motor from which the motor may be readily detached.

l Vhen an electric motor is en'zployed to operate a sewing machine orsimilar device it is very desirable that it be so supported that it may he detached from the machine when not in use and. as readily attached thereto when it is desired to operate the machine, and the present invention provides supportingmeans for a motor especially adapted for use on a sewing machineithough not necessarily restricted to such specific application.

Figure 1 of the accompanying drawings is a View, in end elevation, of a motor, and in transverse section of supporting means therefor constructed in. accordance with my invention. Fig. 2 is a top plan View of some of the parts of Fig. 1, with a portion broken away for the sake of clearnessof illustration. Fig. 3 is a bottom plan view of one of the supporting members for the motor, and Fig. 4 is a top plan view of another of'the supporting members for the motor.

An electric motor 1, is attached, by means of screws 2, to a supporting bracket 3 and is operatively connected to a sewing machine or other device by means of a belt 4; that passes over pulleyso and 6 with which the motor and the sewing machine. are respectively provided. The bracket 3 is-provided with a projection 7 that extends downwardly into a recess in a block 8 and the latter is secured,'by means of screws 9, to the table 10 f the sewing machine. The main and lower gortion of the recess in the block Sis cylindrica-l in form, but the upper portion thereof is'constricted by means of a barrier 1.1 in the form of a segment of a disk formed inte 'ral with the remainder of the block,

The ihainand lower portion of the projection T? is or cylindrical form'having a provided, on the side opposite to the flattened side at 12 and conforms, in shape, substantially to the constricted portion of the recess in the block 8. The remaining portion or neck of the projection .rnay he cylindrical in form and of no greater radius than the shortest radius of the restricted portion of the recess in the block 8 The larger portion of the projection 7 is fiattened face l2, with a recess 14. tially therefrom, with a the side nearest the recess 'wsrdly away from the oppose pin. iii, the isoperatively mounted we Somal 8, bein adapted to pro ect intt reee es with its flat side 12 adjacent to the straight edge of the segn1ent-shaped barrier ll, and

the projection then inserted in the recess.

The bracket 6 is then turned in. order that the. shoulder provided by the cylindrical portion oi the projection 7 may engage the lower face ot'the segment-shaped barrier 11 and until the pin 16 is forced into the one or the other of the recesses 14 and 15.

Vihen the motor is in position for operciting the machine in connection with which it is employed, the pin 16 will project into the recess 14 in the projection 7, as indicated in Fig 2, and prevent rotation of the bracket in either direction. In order toonove the bracket from this position, it is necessary to manually remove the pin 16 from the recess 14.

When the motor is employed in. conneo tlon with what is known as drop-head"- sewing machine, it may often be desirable to lower the head of the machine into the pit and to cover the opening in the table when the machine is not in use, and, in order that the motor. may be moved sufficiently to permit ofapplying the cover to the table of the machine without danger of the bracket 3 becoming detached from are wardly.

block 8', .the recess 15 is provided in the projection 7 for the reception of the pin. 16 which limits the movement of the bracket in a clockwise direction. However, when the pin 16 occupies the recess 15 the bracket shape to the constricted open end,. and a neck of no greater radius than the shortest radiusof said open end, the main portion of the said adjustable member being provided with recesses for the reception of the said pin.

'2. The combination with a member provided with a recess having a constricted open end, of an adjustable member adapted to fit into the said recess and comprising a main portion conforming substantially in shape to the constricted opening and a neck of no greater radius than the shorter radius of the constricted opening, means for prevent-ing rotative movement of the said ad vjustable member in either direction from one predetermined position, and means for permitting rotative movement thereof in one direction only from another predetermined position, when seated in said recess.

3. The combination with a member provided with a recess having a barrier across a portion of its open end, of an adjustable member having a projection which is adapted to fit into the said recess and comprises a main portion having substantially the shape of the open end of said recess, and a 0ylindrical neck of no greater radius than the shortest distance from the center of the recess to the edge of the barrier, means for preventing relative rotative movement of the said members in either direction from one predetermined position, and means for permitting such movement in one direction only from another predetermined position, when seated in said recess.

4. The combination with a member having a recess the main portion of which is cylindrical and the remaining portion of which is constricted by a segmental barrier at one side, of another member havinga projection the main portion of which conforms in shape to the constricted portion of the said recess and the remaining portion of which is of no greater radius thanthe shortest radius of the constricted portion of the said recess, means for preventing relative rotative movement of the said members in either direction from one predetermined position, means for permitting such movement and in one direction only from another predetermined position,.when seated in said recess.

In testimony whereof, I have hereunto subscribed my name this 28th day of Dec., 1907.

- HAROLD M. SOH EIBE.

Witnesses:

F. D. HALLOCK,

Bnnsnr Hmns. 

